NASA astronauts Barry Wilmore and Terry Virts are preparing to ready the International Space Station for a pair of international docking adapters (IDAs) that will allow future commercial crew vehicles to dock. During US EVA #29, Wilmore and Virts will work to route more than 360 feet of cables that will provide power and communication capabilities with the new IDAs. Planned to last six and a half hours, it will be the first of three consecutive spacewalks the duo is marked for. 

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